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Weed Seed: Milium vernale (Spring milletgrass)

Family

Poaceae

Common Name

Spring milletgrass

Regulation

Prohibited Noxious, Class 1 in the Canadian Weed Seeds Order, 2016, 2016 under the Seeds Act. All imported and domestic seed must be free of Prohibited Noxious weed seeds.

Distribution

Canadian: Absent from Canada (Brouillet et al. 2016Footnote 1).

Worldwide: Native to northern Africa, Europe and temperate Asia (USDA-ARS 2016Footnote 2). Introduced to Idaho (USDA-NRCS 2016Footnote 3).

Duration of life cycle

Annual

Seed or fruit type

Floret

Identification features

Size

Shape

Surface Texture

Colour

Habitat and Crop Association

Cultivated fields, field edges, pastures (Barkworth et al. 2007Footnote 4, Callihan et al. 1999Footnote 5). Reported as a weed of winter wheat and other crops in Idaho (Barkworth et al. 2007Footnote 4).

General Information

In Europe, spring milletgrass is a pest of winter wheat and usually travels with the grain to be planted with the crop. In North America, it is only known to occur in Idaho, where it has infested winter wheat crops and the surrounding pastures since 1987 (Barkworth et al. 2007Footnote 4). Spring milletgrass is reported to prefer light soils that are damp in the winter months (Tutin et al. 1980Footnote 6).

Similar species

Giant panic grass (Panicum antidotale)

Photos

Figure 1 - Spring milletgrass (Milium vernale) florets
Spring milletgrass (Milium vernale) florets
Figure 2 - Spring milletgrass (Milium vernale) floret
Spring milletgrass (Milium vernale) floret
Figure 3 - Spring milletgrass (Milium vernale) floret
Spring milletgrass (Milium vernale) floret

Similar species

Figure 4 - Similar species: Giant panicgrass (Panicum antidotale) florets
Similar species: Giant panic grass (Panicum antidotale) florets
Figure 5 - Similar species: Giant panicgrass (Panicum antidotale) floret
Similar species: Giant panic grass (Panicum antidotale) floret
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